The analog I/O module defines the I/O range, customizable values, fallback mode, and fallback value.
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Analog channels can be mixed.
| Channel | Object (Hex) | Sub index | Description | Parameter | 
| CH1 (Input) | 2100 | n | Data Format | 0: Disable 2: Current (4 to 20mA) 3: Voltage (0 to 10V) | 
| 2101 | n | Data range | 0: Fixed 1: User setting | |
| 2102 | n | Lower limit | Lowest value | |
| 2103 | n | Upper limit | Highest value | |
| 6401 | n | Read value | Input | |
| 6422 | 1 | PDO transmission channel number | 
 | |
| 6423 | 0 | PDO transmission enabled/disabled | 0: Disable PDO transmission 1: Enable PDO transmission | |
| CH2 (Input) | Same as CH1 (Input). Sub index is n+1. | |||
| CH1 (Output) | 2200 | n | Data Type | 0: Unused 2: Current (4 to 20mA) 3: Voltage (0 to 10V) | 
| 2201 | n | Data range | 0: Fixed 1: User setting | |
| 2202 | n | Lower limit | Lowest value | |
| 2203 | n | Upper limit | Highest value | |
| 6411 | n | Written value | Output | |
| 6443 | n | Fallback mode | 0: Retentive State 1: Fallback | |
| 6444 | n | Fallback Value (when 6443h = 1) | Fallback Value | |